Comments on: Bash For loop Example http://spiralbound.net/2007/07/23/bash-for-loop-example my digital notebook Tue, 16 Mar 2010 21:23:03 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: omi http://spiralbound.net/2007/07/23/bash-for-loop-example#comment-241196 omi Mon, 02 Nov 2009 13:25:50 +0000 http://spiralbound.net/2007/07/23/bash-for-loop-example/#comment-241196 thanks a lot !!!! thanks a lot !!!!

]]> By: Jadu Saikia http://spiralbound.net/2007/07/23/bash-for-loop-example#comment-218249 Jadu Saikia Wed, 13 May 2009 10:29:36 +0000 http://spiralbound.net/2007/07/23/bash-for-loop-example/#comment-218249 seq is very helpful. A related post http://unstableme.blogspot.com/2008/12/ways-of-writing-bash-for-loop.html seq is very helpful. A related post
http://unstableme.blogspot.com/2008/12/ways-of-writing-bash-for-loop.html

]]> By: Balaji http://spiralbound.net/2007/07/23/bash-for-loop-example#comment-212030 Balaji Wed, 15 Apr 2009 09:36:11 +0000 http://spiralbound.net/2007/07/23/bash-for-loop-example/#comment-212030 Hi, I got solution fro the above, i ran that in ksh, now i ran that under bash, now it is working fine. For Loop in bash, pls browse: http://tldp.org/LDP/abs/html/loops1.html Regards Balaji K Hi,

I got solution fro the above, i ran that in ksh, now i ran that under bash, now it is working fine.

For Loop in bash, pls browse:

http://tldp.org/LDP/abs/html/loops1.html

Regards
Balaji K

]]> By: Balaji http://spiralbound.net/2007/07/23/bash-for-loop-example#comment-211997 Balaji Wed, 15 Apr 2009 06:54:51 +0000 http://spiralbound.net/2007/07/23/bash-for-loop-example/#comment-211997 Hi, When i executed " for (( i=1;i&1; " I got an error like: " ./forloop.ksh[3]: syntax error at line 3 : `((' unexpected " Request you to please provide me a solution for FOR LOOP with range like in C. Regards Balaji K Hi,
When i executed ” for (( i=1;i&1; ”

I got an error like: ” ./forloop.ksh[3]: syntax error at line 3 : `((‘ unexpected ”

Request you to please provide me a solution for FOR LOOP with range like in C.

Regards
Balaji K

]]> By: Jeff Price http://spiralbound.net/2007/07/23/bash-for-loop-example#comment-211503 Jeff Price Mon, 13 Apr 2009 23:03:19 +0000 http://spiralbound.net/2007/07/23/bash-for-loop-example/#comment-211503 with letters you can cat<<EOF|while read line; do echo -n “file$line “; touch file$line; done first line second line another another EOF or create a file delimited by new lines cat thefile|while read line; do echo -n “file$line “; touch file$line; done with letters you can
cat<<EOF|while read line; do echo -n “file$line “; touch file$line; done
first line
second line
another
another
EOF

or create a file delimited by new lines

cat thefile|while read line; do echo -n “file$line “; touch file$line; done

]]> By: Jeff Price http://spiralbound.net/2007/07/23/bash-for-loop-example#comment-211501 Jeff Price Mon, 13 Apr 2009 22:59:45 +0000 http://spiralbound.net/2007/07/23/bash-for-loop-example/#comment-211501 more of a lambda approach seq 1 100|while read i; do echo -n "file${i} "; touch file${i} 2>&1; done more of a lambda approach

seq 1 100|while read i; do echo -n “file${i} “; touch file${i} 2>&1; done

]]> By: Scott Gardner http://spiralbound.net/2007/07/23/bash-for-loop-example#comment-208849 Scott Gardner Sun, 05 Apr 2009 01:27:47 +0000 http://spiralbound.net/2007/07/23/bash-for-loop-example/#comment-208849 Never mind, I just converted my list to a comma-separated list and used... touch {'comma','separated','list'}.txt Never mind, I just converted my list to a comma-separated list and used…

touch {‘comma’,’separated’,'list’}.txt

]]> By: Scott Gardner http://spiralbound.net/2007/07/23/bash-for-loop-example#comment-208828 Scott Gardner Sat, 04 Apr 2009 23:50:16 +0000 http://spiralbound.net/2007/07/23/bash-for-loop-example/#comment-208828 Can you provide a script that would read a text file list of companies, and batch create individual text files for each company? TIA! Can you provide a script that would read a text file list of companies, and batch create individual text files for each company? TIA!

]]> By: cliff http://spiralbound.net/2007/07/23/bash-for-loop-example#comment-203711 cliff Mon, 23 Mar 2009 03:42:48 +0000 http://spiralbound.net/2007/07/23/bash-for-loop-example/#comment-203711 Dan, Not arguing your point, but the purpose of this was never to provide the world with a script that creates numbered files. The only real point was to help me remember how to do something for each line of output from some random program. What can I say, I have a bad memory. Dan,

Not arguing your point, but the purpose of this was never to provide the world with a script that creates numbered files. The only real point was to help me remember how to do something for each line of output from some random program. What can I say, I have a bad memory.

]]> By: Dan http://spiralbound.net/2007/07/23/bash-for-loop-example#comment-201112 Dan Fri, 13 Mar 2009 03:35:32 +0000 http://spiralbound.net/2007/07/23/bash-for-loop-example/#comment-201112 This example parsing the output of seq to an array is considered very bad practice. seq is a non-standard unix/linux program and often isn't included in many distros. The proper technique is to use either for-in as an iterator, or to use c-style looping as was mentioned in a few comments. This example parsing the output of seq to an array is considered very bad practice. seq is a non-standard unix/linux program and often isn’t included in many distros.

The proper technique is to use either for-in as an iterator, or to use c-style looping as was mentioned in a few comments.

]]> By: David http://spiralbound.net/2007/07/23/bash-for-loop-example#comment-186774 David Mon, 02 Feb 2009 20:17:41 +0000 http://spiralbound.net/2007/07/23/bash-for-loop-example/#comment-186774 None of these work with solaris 5.8 bash...it doesnt have seq and i cant figure it out...VERY frustrating None of these work with solaris 5.8 bash…it doesnt have seq and i cant figure it out…VERY frustrating

]]> By: Chris http://spiralbound.net/2007/07/23/bash-for-loop-example#comment-182290 Chris Sat, 17 Jan 2009 19:58:41 +0000 http://spiralbound.net/2007/07/23/bash-for-loop-example/#comment-182290 Just came across this, but just for completeness: Regarding using strings instead of numbers: touch file{a..c} or for i in {a..c}; do something...; done or {'a','b','c','etc'} Just came across this, but just for completeness:

Regarding using strings instead of numbers:

touch file{a..c}

or

for i in {a..c}; do something…; done

or

{‘a’,'b’,'c’,'etc’}

]]> By: Nick http://spiralbound.net/2007/07/23/bash-for-loop-example#comment-163586 Nick Thu, 21 Aug 2008 18:26:37 +0000 http://spiralbound.net/2007/07/23/bash-for-loop-example/#comment-163586 How I can write loop without nubmers but with some strings like 'a', 'b', 'c'? How I can write loop without nubmers but with some strings like ‘a’, ‘b’, ‘c’?

]]> By: jica http://spiralbound.net/2007/07/23/bash-for-loop-example#comment-160463 jica Wed, 30 Jul 2008 12:38:30 +0000 http://spiralbound.net/2007/07/23/bash-for-loop-example/#comment-160463 ei thanks! very useful! :D ei thanks! very useful! :D

]]> By: Duncan http://spiralbound.net/2007/07/23/bash-for-loop-example#comment-153704 Duncan Tue, 10 Jun 2008 15:45:31 +0000 http://spiralbound.net/2007/07/23/bash-for-loop-example/#comment-153704 eloy: you can found a answer here : http://www.linuxtopia.org/online_books/advanced_bash_scripting_guide/dblparens.html so accully you can use a C-style in double parenthesis :) P.S.: Google is your friend :) eloy: you can found a answer here :
http://www.linuxtopia.org/online_books/advanced_bash_scripting_guide/dblparens.html
so accully you can use a C-style in double parenthesis :)

P.S.: Google is your friend :)

]]> By: eloy http://spiralbound.net/2007/07/23/bash-for-loop-example#comment-151919 eloy Thu, 22 May 2008 18:24:09 +0000 http://spiralbound.net/2007/07/23/bash-for-loop-example/#comment-151919 kobit why double parenthesis is needed? kobit why double parenthesis is needed?

]]> By: kobit http://spiralbound.net/2007/07/23/bash-for-loop-example#comment-150544 kobit Wed, 07 May 2008 19:07:13 +0000 http://spiralbound.net/2007/07/23/bash-for-loop-example/#comment-150544 Sorry my code was messed up in my previous comment. Hopefully it is OK this time: <code> for (( i=1;i<=100;i+=1 )) ; do echo -n "file${i} "; touch file${i} 2>&1; done </code> Sorry my code was messed up in my previous comment. Hopefully it is OK this time:

for (( i=1;i<=100;i+=1 )) ; do echo -n "file${i} "; touch file${i} 2>&1; done

]]> By: kobit http://spiralbound.net/2007/07/23/bash-for-loop-example#comment-150543 kobit Wed, 07 May 2008 19:05:02 +0000 http://spiralbound.net/2007/07/23/bash-for-loop-example/#comment-150543 What about: <code> for (( i=1;i&1; done </code> I guess for huge loops like 1000 or 100 000 this might work better. What about:

for (( i=1;i&1; done

I guess for huge loops like 1000 or 100 000 this might work better.

]]> By: bre http://spiralbound.net/2007/07/23/bash-for-loop-example#comment-148862 bre Fri, 18 Apr 2008 17:49:44 +0000 http://spiralbound.net/2007/07/23/bash-for-loop-example/#comment-148862 Haha, took a look at a couple of website just before happening upon yours. There's no way I would have been able to figure this one out so quickly (if at all) if it hadn't have been for your great blurb on the subject here. Thanks. Haha, took a look at a couple of website just before happening upon yours. There’s no way I would have been able to figure this one out so quickly (if at all) if it hadn’t have been for your great blurb on the subject here. Thanks.

]]> By: dionyziz http://spiralbound.net/2007/07/23/bash-for-loop-example#comment-148734 dionyziz Thu, 17 Apr 2008 11:18:42 +0000 http://spiralbound.net/2007/07/23/bash-for-loop-example/#comment-148734 Cheers! :-) Cheers! :-)

]]> By: 4j4x http://spiralbound.net/2007/07/23/bash-for-loop-example#comment-148098 4j4x Thu, 10 Apr 2008 01:50:51 +0000 http://spiralbound.net/2007/07/23/bash-for-loop-example/#comment-148098 Thank you very much for the code. :P Nice and helpful.. Thank you very much for the code. :P
Nice and helpful..

]]> By: BKC http://spiralbound.net/2007/07/23/bash-for-loop-example#comment-148080 BKC Wed, 09 Apr 2008 18:08:09 +0000 http://spiralbound.net/2007/07/23/bash-for-loop-example/#comment-148080 How about "touch file{1..100}" as an easier solution using bash. How about “touch file{1..100}” as an easier solution using bash.

]]> By: Mark http://spiralbound.net/2007/07/23/bash-for-loop-example#comment-146878 Mark Tue, 25 Mar 2008 21:29:34 +0000 http://spiralbound.net/2007/07/23/bash-for-loop-example/#comment-146878 Thanks for this, I couldn't find anywhere how to generate n numbers, seq worked like a charm. Thanks for this, I couldn’t find anywhere how to generate n numbers, seq worked like a charm.

]]> By: Nate http://spiralbound.net/2007/07/23/bash-for-loop-example#comment-146787 Nate Mon, 24 Mar 2008 14:35:44 +0000 http://spiralbound.net/2007/07/23/bash-for-loop-example/#comment-146787 Agreed, Thanks for posting. Agreed, Thanks for posting.

]]> By: Emily http://spiralbound.net/2007/07/23/bash-for-loop-example#comment-146567 Emily Fri, 21 Mar 2008 18:04:30 +0000 http://spiralbound.net/2007/07/23/bash-for-loop-example/#comment-146567 Thanks very much! Never would have figured seq 1 10 needed to be $(seq 1 10)!!:) Thanks very much! Never would have figured seq 1 10 needed to be $(seq 1 10)!!:)

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